DataFlex

Get a Header Field of a Related Item

Demonstrates the Chilkat Email.GetRelatedHeader method, which returns the value of a named header field of a related item. The first argument is the zero-based related-item index and the second is the MIME header-field name. This example reads the Content-Type header of a related style sheet.

Background: Each related item is a MIME part with its own header block. Where GetRelatedAttr extracts a single named parameter from a header, GetRelatedHeader returns the entire value of a header field — for example the full Content-Type or Content-Location line — which is handy for inspecting exactly how an embedded resource is described.

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DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoEmail
    String sCt

    //  Demonstrates the GetRelatedHeader method, which returns the value of a header field (by
    //  name) of a related item.  The first argument is the zero-based related-item index and the
    //  second is the MIME header-field name.

    Get Create (RefClass(cComChilkatEmail)) To hoEmail
    If (Not(IsComObjectCreated(hoEmail))) Begin
        Send CreateComObject of hoEmail
    End
    Set ComSubject Of hoEmail To "GetRelatedHeader example"

    //  Set an HTML body and add a related style sheet (index 0).
    Send ComSetHtmlBody To hoEmail '<html><head><link rel="stylesheet" href="styles.css"/></head><body>Styled.</body></html>'
    Send ComAddRelatedString2 To hoEmail "styles.css" "body { color: navy; }" "utf-8"

    //  Get the Content-Type header of the first related item (index 0).
    Get ComGetRelatedHeader Of hoEmail 0 "Content-Type" To sCt
    Showln "Related item 0 Content-Type: " sCt


End_Procedure